package com.ruoyi.web.controller.common;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.ShiroUtils;
import com.ruoyi.system.domain.SysFileInfo;
import com.ruoyi.system.service.ISysFileInfoService;
import com.sun.org.apache.bcel.internal.generic.NEW;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.config.ServerConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUploadUtils;
import com.ruoyi.common.utils.file.FileUtils;

/**
 * 通用请求处理
 *
 * @author ruoyi
 */
@Controller
@RequestMapping("/common")
public class CommonController
{
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ServerConfig serverConfig;

    @Autowired
    private ISysFileInfoService sysFileInfoService;

    private static final String FILE_DELIMETER = ",";

    /**
     * 通用下载请求
     *
     * @param fileName 文件名称
     * @param delete 是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request)
    {
        try
        {
            if (!FileUtils.checkAllowDownload(fileName))
            {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = RuoYiConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete)
            {
                FileUtils.deleteFile(filePath);
            }
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 上传信用评价附件
     */
    @PostMapping("/evaTask/upload")
    @ResponseBody
    public AjaxResult taskUploadFile(MultipartFile file) {
        SysUser sysUser = ShiroUtils.getSysUser();
        // 上传文件路径
        String filePath = RuoYiConfig.getUploadPath();
        // 上传并返回新文件名称
        String fileName = "";
        try {
            fileName = FileUploadUtils.upload(filePath, file);

            if(StringUtils.isNotEmpty(fileName)) {
                SysFileInfo sysFileInfo = new SysFileInfo();
                sysFileInfo.setFilePath(fileName);
                sysFileInfo.setFileName(file.getOriginalFilename());

                Long fileSize = file.getSize();
                BigDecimal bigDecimal = new BigDecimal(file.getSize());
                //BigDecimalUtil
                sysFileInfo.setFileSize(bigDecimal.longValue());
                String unit = FileUtils.checkFileSizeUnit(BigDecimal.valueOf(fileSize));
                if (StringUtils.isNotEmpty(unit)) {
                    String transFileSize = FileUtils.transFileSize(BigDecimal.valueOf(fileSize), unit);
                    sysFileInfo.setFileSizeTrans(transFileSize);
                }
                sysFileInfo.setBusinessTable("eva_task_detail");

                sysFileInfo.setCreateBy(String.valueOf(sysUser.getUserName()));
                sysFileInfoService.insertSysFileInfo(sysFileInfo);
                AjaxResult ajax = AjaxResult.success();
                ajax.put("filePath", fileName);
                return ajax;
            }else{
                return AjaxResult.error("文件异常！");
            }
        }catch (Exception e){
            log.error("文件上传异常{}",e);
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 上传疫情防控文件
     */
    @PostMapping("/collect/upload")
    @ResponseBody
    public AjaxResult collectUploadFile(MultipartFile file) {

        // 上传文件路径
        String filePath = RuoYiConfig.getUploadPath();
        // 上传并返回新文件名称
        String fileName = "";
        try {
            fileName = FileUploadUtils.upload(filePath, file);

            if(StringUtils.isNotEmpty(fileName)) {
                SysFileInfo sysFileInfo = new SysFileInfo();
                sysFileInfo.setFilePath(fileName);
                sysFileInfo.setFileName(file.getOriginalFilename());

                Long fileSize = file.getSize();
                BigDecimal bigDecimal = new BigDecimal(file.getSize());
                //BigDecimalUtil
                sysFileInfo.setFileSize(bigDecimal.longValue());
                String unit = FileUtils.checkFileSizeUnit(BigDecimal.valueOf(fileSize));
                if (StringUtils.isNotEmpty(unit)) {
                    String transFileSize = FileUtils.transFileSize(BigDecimal.valueOf(fileSize), unit);
                    sysFileInfo.setFileSizeTrans(transFileSize);
                }
                sysFileInfo.setBusinessTable("yq_info_collect");

                sysFileInfoService.insertSysFileInfo(sysFileInfo);
                AjaxResult ajax = AjaxResult.success();
                ajax.put("filePath", fileName);
                return ajax;
            }else{
                return AjaxResult.error("文件异常！");
            }
        }catch (Exception e){
            log.error("文件上传异常{}",e);
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 通用上传请求（单个）
     */
    @PostMapping("/upload")
    @ResponseBody
    public AjaxResult uploadFile(MultipartFile file) {
        try
        {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            String url = serverConfig.getUrl() + fileName;
            AjaxResult ajax = AjaxResult.success();
            ajax.put("url", url);
            ajax.put("fileName", fileName);
            ajax.put("newFileName", FileUtils.getName(fileName));
            ajax.put("originalFilename", file.getOriginalFilename());
            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 通用上传请求（多个）
     */
    @PostMapping("/uploads")
    @ResponseBody
    public AjaxResult uploadFiles(List<MultipartFile> files) {
        try
        {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();
            List<String> urls = new ArrayList<String>();
            List<String> fileNames = new ArrayList<String>();
            List<String> newFileNames = new ArrayList<String>();
            List<String> originalFilenames = new ArrayList<String>();
            for (MultipartFile file : files)
            {
                // 上传并返回新文件名称
                String fileName = FileUploadUtils.upload(filePath, file);
                String url = serverConfig.getUrl() + fileName;
                urls.add(url);
                fileNames.add(fileName);
                newFileNames.add(FileUtils.getName(fileName));
                originalFilenames.add(file.getOriginalFilename());
            }
            AjaxResult ajax = AjaxResult.success();
            ajax.put("urls", StringUtils.join(urls, FILE_DELIMETER));
            ajax.put("fileNames", StringUtils.join(fileNames, FILE_DELIMETER));
            ajax.put("newFileNames", StringUtils.join(newFileNames, FILE_DELIMETER));
            ajax.put("originalFilenames", StringUtils.join(originalFilenames, FILE_DELIMETER));
            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 本地资源通用下载
     */
    @GetMapping("/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response) throws Exception
    {
        try
        {
            if (!FileUtils.checkAllowDownload(resource))
            {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
            }
            // 本地资源路径
            String localPath = RuoYiConfig.getProfile();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 保存成功页面
     */
    @GetMapping("/success")
    public String add(HttpServletRequest request, ModelMap map)
    {
        return "error/success";
    }

    /**
     * 填报部门维护页面
     */
    @GetMapping("/deptError")
    public String deptError(HttpServletRequest request, ModelMap map)
    {
        map.put("msg", "请联系管理员，绑定填报部门");

        return "error/deptError";
    }

    /**
     * 审核权限提醒页面
     */
    @GetMapping("/aduitError")
    public String aduitError(HttpServletRequest request, ModelMap map)
    {
        map.put("msg", "抱歉，您没有审核权限");

        return "error/deptError";
    }
}
